Bob Woodward found no evidence of Russian collusion, despite finding lots of other things people supposedly told him that they now deny telling him. I get the feeling he sold the book on Watergate 2 and then had to make up a lot of thinly sourced quotes when he didn't find shit.
We have confirmation from new Strzok text messages that he wanted to open a case and file charges within 2 hours of Comey being fired "while Andy is acting" (as in, presumably, while Andrew McCabe was acting as FBI director). More evidence the whole thing was planned out to target the President with an internal coup.
Lisa Page's deposition indicates that more than 9 months into their investigation of the Trump campaign, they had found no evidence of collusion, despite their use of national-security wiretap authority and multiple human sources. She frames it as "we still couldn't answer the question." A better characterization seems to be that they didn't like the answer.